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11. 发明申请

US20100184435A1 METHODS AND APPARATUS FOR PROVIDING A WIRELESS EXPANSION NETWORK 有权
标题翻译：提供无线扩展网络的方法和设备
公开(公告)号：US20100184435A1
公开(公告)日：2010-07-22
申请号：US12357797
申请日：2009-01-22
申请人： Stephen J. Shellhammer , Ahmed K. Sadek , Cong T. Nguyen
发明人： Stephen J. Shellhammer , Ahmed K. Sadek , Cong T. Nguyen
IPC分类号： H04W36/00 , H04W72/04
CPC分类号： H04W36/385
摘要： Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.
摘要翻译：用于提供无线扩展网络的方法和装置。一方面，一种装置包括：扩展电路，被配置为识别由主网络和扩展网络中的一个提供的所选择的上行链路（UL）信道和选择的下行链路（DL）信道中的至少一个，以及处理电路被配置为切换到所选择的UL和DL信道中的至少一个。一种装置包括用于获得与主网络和扩展网络相关联的链路参数的装置，用于基于所述链路参数识别在主网络和扩展网络上分配了传输信道的客户端的装置，以及用于向客户端发送消息的装置以指示分配的传输信道。

12. 发明申请

US20110128895A1 APPARATUS AND METHOD FOR SPECTRUM SHARING USING LISTEN-BEFORE-TALK WITH QUIET PERIODS 有权
标题翻译：装置和方法，用于使用具有预定周期的收听前的频谱共享
公开(公告)号：US20110128895A1
公开(公告)日：2011-06-02
申请号：US12852128
申请日：2010-08-06
申请人： Ahmed K. Sadek , Stephen J. Shellhammer
发明人： Ahmed K. Sadek , Stephen J. Shellhammer
IPC分类号： H04J3/00 , H04B7/00
CPC分类号： H04W16/14 , H04W72/082 , H04W74/0808
摘要： Apparatus and method for spectrum sharing using listen before talk (LBT) and quiet periods are disclosed. This includes assessing using LBT to determine if a shared spectrum channel is being used by at least one other network, and transmitting transmission frames over the shared spectrum channel in at least one of an uplink or a downlink when the channel is determined as not being used. The accumulated time of transmission use of the spectrum channel is counted based on predetermined conditions, and a determination made when the accumulated time exceeds a maximum allotted time. Transmission of frames by a network is allowed to continue if the maximum time has not been exceeded and the spectrum remains available. A quiet period is then executed once the maximum time period is exceeded.
摘要翻译：公开了使用听前（LBT）和安静时段进行频谱共享的装置和方法。这包括使用LBT来评估是否由至少一个其他网络使用共享频道信道，以及当该信道被确定为不被使用时，在上行链路或下行链路中的至少一个中通过共享频道信道发送传输帧。基于预定条件计算频谱信道的传输使用的累积时间，并且当累积时间超过最大分配时间时进行确定。如果没有超过最大时间并且频谱保持可用，网络传输帧将被允许继续。一旦超过最大时间段，则执行一个安静的时间段。

13. 发明申请

US20130059614A1 METHODS AND APPARATUS FOR IDENTIFYING AND/OR SELECTING CHANNELS 有权
标题翻译：识别和/或选择通道的方法和装置
公开(公告)号：US20130059614A1
公开(公告)日：2013-03-07
申请号：US13226101
申请日：2011-09-06
申请人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
发明人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
IPC分类号： H04W72/02
CPC分类号： H04W72/06 , H04W8/005
摘要： A decentralized approach to peer discovery channel selection is used in some embodiments. In some such embodiments, a mobile wireless terminal supporting a peer to peer signaling protocol, independently determines what channels to use for peer discovery without a central controller indicating the channel or channels to be used. Assuming channels are of a suitable quality, the channels having the best quality need not be identified, with channel selection being made on a predetermined channel ordering basis from those with suitable quality. Different wireless communications devices in the system use the same peer discovery channel selection process making it likely that the same channel or channels will tend to be picked to be used for peer discovery. Other embodiments are directed to implementing a centralized approach to peer discovery channel selection in which a central controller or base station selects channels to be used for peer discovery signaling.
摘要翻译：在一些实施例中使用分布式对等体发现信道选择方法。在一些这样的实施例中，支持对等信令协议的移动无线终端独立地确定用于对等体发现的哪些信道，而不指示要使用的信道或信道的中央控制器。假设信道具有合适的质量，则不需要识别具有最佳质量的信道，其中信道选择是从具有适当质量的信道选择进行的。系统中的不同的无线通信设备使用相同的对等体发现信道选择过程，使得可能相同的信道或信道将倾向于被选择用于对等体发现。其他实施例涉及实现对等体发现信道选择的集中式方法，其中中央控制器或基站选择要用于对等体发现信令的信道。

14. 发明授权

US09055588B2 Methods and apparatus for identifying and/or selecting channels 有权
标题翻译：用于识别和/或选择频道的方法和装置
公开(公告)号：US09055588B2
公开(公告)日：2015-06-09
申请号：US13226101
申请日：2011-09-06
申请人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
发明人： Sreeram Kannan , Ahmed K. Sadek , Stephen J. Shellhammer , Saurabh Tavildar , Nilesh Khude
IPC分类号： H04B7/00 , H04W72/00 , H04W72/06 , H04W8/00
CPC分类号： H04W72/06 , H04W8/005
摘要： A decentralized approach to peer discovery channel selection is used in some embodiments. In some such embodiments, a mobile wireless terminal supporting a peer to peer signaling protocol, independently determines what channels to use for peer discovery without a central controller indicating the channel or channels to be used. Assuming channels are of a suitable quality, the channels having the best quality need not be identified, with channel selection being made on a predetermined channel ordering basis from those with suitable quality. Different wireless communications devices in the system use the same peer discovery channel selection process making it likely that the same channel or channels will tend to be picked to be used for peer discovery. Other embodiments are directed to implementing a centralized approach to peer discovery channel selection in which a central controller or base station selects channels to be used for peer discovery signaling.
摘要翻译：在一些实施例中使用分布式对等体发现信道选择方法。在一些这样的实施例中，支持对等信令协议的移动无线终端独立地确定用于对等体发现的哪些信道，而不指示要使用的信道或信道的中央控制器。假设信道具有合适的质量，则不需要识别具有最佳质量的信道，其中信道选择是从具有适当质量的信道选择进行的。系统中的不同的无线通信设备使用相同的对等体发现信道选择过程，使得可能相同的信道或信道将倾向于被选择用于对等体发现。其他实施例涉及实现对等体发现信道选择的集中式方法，其中中央控制器或基站选择要用于对等体发现信令的信道。

15. 发明申请

US20100197317A1 MULTICHANNEL DYNAMIC FREQUENCY SELECTION 有权
标题翻译：多通道动态频率选择
公开(公告)号：US20100197317A1
公开(公告)日：2010-08-05
申请号：US12695314
申请日：2010-01-28
申请人： Ahmed K. Sadek , Alexei Gorokhov , Stephen J. Shellhammer
发明人： Ahmed K. Sadek , Alexei Gorokhov , Stephen J. Shellhammer
IPC分类号： H04W72/08
CPC分类号： H04W72/082 , H04W16/14 , H04W72/0406
摘要： Multichannel dynamic frequency selection in wireless networks begins with an access point for a wireless network broadcasting a list of unused channels that are available for communication within the area served by the access point. The various access terminals within this service area receive the broadcast and measure various interference characteristics of each of the channels in the list. The access terminals then send this interference information to the access point, which compiles a matrix of interference information that is associated with the quality of each signal as related to each access terminal. Using this information, the access point selects the appropriate channels to serve the most number of access terminals at the highest possible channel qualities.
摘要翻译：无线网络中的多信道动态频率选择开始于无线网络的接入点，该接入点广播可用于由接入点服务的区域内的通信的未使用信道的列表。该服务区域内的各种接入终端接收广播并测量列表中每个频道的各种干扰特性。接入终端然后将该干扰信息发送到接入点，该接入点编译与每个接入终端相关的每个信号的质量相关联的干扰信息矩阵。使用该信息，接入点选择适当的信道以尽可能高的信道质量来服务于最多的接入终端。

16. 发明申请

US20100195572A1 DISTRIBUTED PRIORITIZED CONTENTION FOR SPECTRUM SHARING 有权
标题翻译：用于分光共享的分布式优先注意
公开(公告)号：US20100195572A1
公开(公告)日：2010-08-05
申请号：US12688740
申请日：2010-01-15
申请人： Ahmed K. Sadek , Stephen J. Shellhammer
发明人： Ahmed K. Sadek , Stephen J. Shellhammer
IPC分类号： H04W4/00 , H04J3/02
CPC分类号： H04L5/0033 , H04L5/0035 , H04W16/14 , H04W74/085
摘要： Techniques for use in contending for a portion of a television channel spectrum are disclosed. In some instances, a back-off value is used to decide whether a contender's contention number will be transmitted when the contention channel is free, and the back-off value is determined based on the contention number. In some instances, a contender monitors the contention channel and withdraws from contention if it detects from the contention channel that a higher priority contender is in contention.
摘要翻译：公开了用于竞争电视频道频谱的一部分的技术。在某些情况下，使用退避值来决定竞争者的竞争号码是否在竞争信道是空闲时被发送，并且基于竞争号确定退避价值。在某些情况下，如果竞争者从争用频道中检测到较高优先级的竞争者在争夺中，则竞争者监视争用通道并退出争用。

17. 发明授权

US08675623B2 Distributed prioritized contention for spectrum sharing 有权
标题翻译：分布式优先级争用频谱共享
公开(公告)号：US08675623B2
公开(公告)日：2014-03-18
申请号：US12688740
申请日：2010-01-15
申请人： Ahmed K. Sadek , Stephen J. Shellhammer
发明人： Ahmed K. Sadek , Stephen J. Shellhammer
IPC分类号： H04W4/00 , H04L12/413 , H04J3/02
CPC分类号： H04L5/0033 , H04L5/0035 , H04W16/14 , H04W74/085
摘要： Techniques for use in contending for a portion of a television channel spectrum are disclosed. In some instances, a back-off value is used to decide whether a contender's contention number will be transmitted when the contention channel is free, and the back-off value is determined based on the contention number. In some instances, a contender monitors the contention channel and withdraws from contention if it detects from the contention channel that a higher priority contender is in contention.
摘要翻译：公开了用于竞争电视频道频谱的一部分的技术。在某些情况下，使用退避值来决定竞争者的竞争号码是否在竞争信道是空闲时被发送，并且基于竞争号确定退避价值。在某些情况下，如果竞争者从争用频道中检测到较高优先级的竞争者在争夺中，则竞争者监视争用通道并退出争用。

18. 发明授权

US08577377B2 Methods and apparatus for providing a wireless expansion network 有权
标题翻译：用于提供无线扩展网络的方法和装置
公开(公告)号：US08577377B2
公开(公告)日：2013-11-05
申请号：US12357797
申请日：2009-01-22
申请人： Stephen J. Shellhammer , Ahmed K. Sadek , Cong T. Nguyen
发明人： Stephen J. Shellhammer , Ahmed K. Sadek , Cong T. Nguyen
IPC分类号： H04W36/00
CPC分类号： H04W36/385
摘要： Methods and apparatus for providing a wireless expansion network. In an aspect, an apparatus includes an expansion circuit configured to identify at least one of a selected uplink (UL) channel and a selected downlink (DL) channel that are provided by one of a primary network and an expansion network, and a processing circuit configured to switch to the at least one of the selected UL and DL channels. An apparatus includes means for obtaining link parameters associated with a primary network and an expansion network, means for identifying clients that are assigned transmission channels on both the primary network and the expansion network based on the link parameters, and means for transmitting messages to the clients to indicate the assigned transmission channels.
摘要翻译：用于提供无线扩展网络的方法和装置。一方面，一种装置包括：扩展电路，被配置为识别由主网络和扩展网络中的一个提供的所选择的上行链路（UL）信道和选择的下行链路（DL）信道中的至少一个，以及处理电路被配置为切换到所选择的UL和DL信道中的至少一个。一种装置包括用于获得与主网络和扩展网络相关联的链路参数的装置，用于基于所述链路参数识别在主网络和扩展网络上分配了传输信道的客户端的装置，以及用于向客户端发送消息的装置以指示分配的传输信道。

19. 发明申请

US20130107868A1 MITIGATING IMPACT OF POWER IMBALANCE ON REMOTE DATA RATE IN WIRELESS LOCAL AREA NETWORK 有权
标题翻译：在无线局域网中减轻功率不平衡对远程数据速率的影响
公开(公告)号：US20130107868A1
公开(公告)日：2013-05-02
申请号：US13547696
申请日：2012-07-12
申请人： Ahmed K. Sadek , Ashok Mantravadi , Tamer Adel Kadous
发明人： Ahmed K. Sadek , Ashok Mantravadi , Tamer Adel Kadous
IPC分类号： H04W52/04
CPC分类号： H04W52/325 , H04L1/0001 , H04L1/1692 , H04L1/1854 , H04W52/244
摘要： A method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) includes transmitting a wireless local area network (WLAN) acknowledgement (ACK) packet at a first transmit power level to a remote device. The method further includes transmitting, to the remote device, a WLAN data packet at a second transmit power level that is lower than the first transmit power level of the WLAN ACK packet. Another method for mitigating the impact of a power imbalance on a remote data rate in a wireless local area network (WLAN) may include selecting a wireless local area network (WLAN) acknowledgement (ACK) packet transmit rate independent from a rate at which a WLAN data packet is received. This method further includes transmitting, to a remote device, a WLAN ACK packet at the selected WLAN ACK packet transmit rate.
摘要翻译：一种用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的方法包括以第一发射功率电平向远程设备发送无线局域网（WLAN）确认（ACK）分组。该方法还包括以低于WLAN ACK分组的第一发射功率电平的第二发射功率电平向远程设备发送WLAN数据分组。用于减轻功率不平衡对无线局域网（WLAN）中的远程数据速率的影响的另一种方法可以包括：选择无线局域网（WLAN）确认（ACK）分组传输速率，与WLAN的速率无关接收数据包。该方法还包括以所选择的WLAN ACK分组传输速率向远程设备发送WLAN ACK分组。

20. 发明授权

US08306550B2 Automatic gain control in radio frequency receivers 失效
标题翻译：射频接收机自动增益控制
公开(公告)号：US08306550B2
公开(公告)日：2012-11-06
申请号：US12941762
申请日：2010-11-08
申请人： Ahmed K. Sadek
发明人： Ahmed K. Sadek
IPC分类号： H04W72/00 , H04K3/00
CPC分类号： H04B1/1027 , H03G3/3052 , H04B1/109 , H04W16/14 , H04W72/082 , H04W88/06
摘要： An automatic gain controller (AGC) in white space devices is configured with two operational modes. When entering a quiet time of the white space device, the AGC selects the first operational mode. The first operational mode is associated with detecting licensed signals on one or more white space channels by testing a measured received signal strength indicator (RSSI) value to determine which one of a number of the AGC's gain states should be used corresponding to a gain for application to input white space signals on the whitespace channels. When not in the quiet time, the AGC enters a second operational mode. The second operational mode sets a fixed gain state of the AGC's multiple gain states to apply in selecting one of the white space channels on which no licensed signals were detected.
摘要翻译：白色空间设备中的自动增益控制器（AGC）配置有两种操作模式。当进入白色空间设备的安静时间时，AGC选择第一个操作模式。第一操作模式与通过测试测量的接收信号强度指示符（RSSI）值来检测一个或多个空白信道上的许可信号相关联，以确定应该使用多少AGC增益状态中的哪一个对应于应用的增益在空白信道上输入空白信号。当不安静的时候，AGC进入第二个操作模式。第二操作模式设置AGC的多个增益状态的固定增益状态，以应用于选择其中未检测到许可信号的空白信道之一。

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